Finishing machine



Allg. 15, 1933. 1 I JONES 1,922,134

lFNISHING MACHINE Filed May 9, 1950 Patented Aug. `15,` 1933` N *UNITED.STATES 4iwrstl'r OFFICE f rlmsi-IING MACHINE John L. Jones, AWeymouth, Mass., assignor` to` United Shoe Machinery Corporation, Paterson, N. J., aV Corpnration of NewJersey i Application May 9, 1930.` serial No. 451,159

15 Claims. '(ol. la- 7n This invention relates to nishingmachines and finishing-toolV heaters `an'd is herein illustrated` as embodied in `a Ymachine for operating on shoe "bottoms and the sole and heel edges of shoes.

The nishing of soles of `shoes requires the use of various scouring,` polishing and `burnishing tools which are commonly mounted on a single rotating shaft, thevarious tools frequently being `used in succession by one'operator, only one tool of` a plurality on a shaft generally being used Tat anyifone time. It is common in the artwto provide in iinishing machines of the kind referred to a means 'for `heating the burnishing tool or tools; ,but since theburnishing tools are not `used continuouslyasabove pointed out, it

`is desirablel'therefore that the heating means may be easily rendered operative or inoperative according Vto whetherthe burnishing tool is beingv `lused or not, and also that it shall be capable ofv heatingthe `tool to the proper temperature quickly; l fIn-view of the foregoing, the invention in one "aspect'fprovides in a `finishing machine having a moving tool, such, for example,` as a "rotary burnishing tool, means for'heatingthetool by `frictional engagement Withthe tool,` means for retracting theheating means from 'thetooL and yielding means arranged alternatively to 'urge the heating means against the tool and to cause "the retracting means tohold the heating means in retracted position( The heating means herein illustrated comprises a friction shoe, and `the means herein described for retracting and holding the `shoe retracted :'from the tool 'consists1 of` a lever and connections betweenv the lever and the shoe comprising alink, the lever being mov-f able to carry the axis of the link toward and beyond the pivotal axis of the lever.` The'movementof the'lever in this direction is limited by `a stop Ypositioned to be engaged bythe link after its axis `has c rosselftheV pivotal `axis of thelever. By `the use of`this mechanism the spring alter- Anatively urges the heating means towardand againstithe tool when itis desired to heatthe` rtool also holds 'the link against the stop when it is desired to retain the heating means `in inoperative or retracted position.`

afriction shoe `arranged `for contact with the Itoolpa support for the shoettogetherfwith `means l "carried-by the support for moving the shoe tol l l l l ward the -fsupportand yieldmg means arranged `support a finishing shaft 12 are clamped in spaced which isheld against `a clamp plate 26 having a hence theforce with which the friction shoe 14 alternatively to urge the shoe away from the support and to cause said shoe moving means tohold the shoe in its proximal position with respect to the support.

These and other features of the invention will B 65 Fig. 1"is a viewin perspective showing the `invention as embodied in a inishing machine;

Fig-2 is a side elevation of a part ofthe device shoWn`inFig.1;and` w W Fig.` 3 is an enlarged plan view of a fragment 70 of the device shown in Fig. 2. l Y

y The improved device is illustrated in Fig. 1 as supported on a tubular frame element on Which the legs (not shown) `which rotatably 75 relation. A friction shoe 14, which is illustrated as used for frictionally heating and cleaning a forepart edge burnishingftool 16 on the shaft `12, isslid`ably supported in ahead 18 of a support ZOwhich' is so clamped to the frame elementlO by meansof bolts 22 as tovhold `the shoe in juxtaposition to the tool. The friction shoe 14 comprises a tool-engaging element 24 which may be ofleather or any othersuitable material and cylindrical shank 28 by means of another clamp plate the"y clamp plate 30 and the element 24` being held in assembled relation by means of a 'bolt `321` The,friction shoeV 14, the shank 28 of` which is slidably received vin atrecess 34 in the Yheadil of `the support, is yieldingly urged away from the support and toward the tool 16 by means the Yshank 28. The stress in the spring, and

is urged .toward the burnishing tool, mayl be Vadjusted. by means of a set-screw 38 having `on `itsinner end ashoulder 40 arranged to abut the adjacent end "ofthe spring 36 and a reduced portion 42-"ar1anged`to extendwithin the coils of the 100 -`spring'thereby to aline the spring and the screw 138. A lock nut 44 on the screwA 38 is arranged to secure it in any desired position of adjust- `ment.` Invention is also `to be `recognized 1n` la heater `adaptedforfheating a moving toolv comprising Inorde'r toenable anoperator of a finishing ,In'achine in which the invention is embodied to movethe friction shoe toward' the 4support and hence to retract the friction shoe from the tool, the illustrated device is provided with a lever;

46 pivoted to the head `1,8 of thesupport onja 110 burnishing tool,V means for screw 48 which is threaded into a boss 5i) ezitending laterally from the headvl. The lever 46 is in effect a bell crank and is pivoted to a link 52 by means of a pin 54, the other end of the linkj52 being also pivoted to the clamp plate 26 of the friction shoe by means of a studk 56 passing through the clamp plates 26 andBO. 'it will be notedfrom Figs. l and 2 that the link 52 is so bent that its axis, that is, an imaginary line between its pivot points, will move towardand cross the pivotal axis of the bell crank lever 46 when the lever is rotated in a counterclockwise direction from its position shown in Fig.. 1-to thatv shown in Fig. 2. Until the axisoi the link.. moved as above described, crosses the pivotal 'axis' of the bell crank lever 46, it is apparent that the operator must do work against the spring 36 and that as soon as the aXis of the link has passed the pivotal axis of the bell cranlf; lever 46 the spring itself tends to rotate the bell crank lever in the direction. and to urgeV the friction shoe toward the tool. This .latterv movement is limited by the link 52 the crookedportion of which is arranged to engage the upper part of the boss which thereby provides a stop which, in

`conjunction with the link 52, lever edand spring 36, holds the friction shoe in retracted position, or in its proximal position with respect to the support 20 as illustrated in Fig. 2.

As used in a finishing machine of the type referred to, the device is normally held in retracted position'as aboveV described'but when it isl desired to use the burnishing tool 16 theoperator merely turns the bell crank lever 46 in a clockwise direction, when looking at the machine as indicated by Fig. -thereby allowing the spring i136 to urge the friction shoe against the tool.

As herein illustrated, the ,tool-engaging. element 24 of the friction shoe engages a substantial eX- for treating the forepart portion of a sole edge,

it is to be understood .that the'present embodiment of the invention is not limited to usefin connection with burnishing tools havingvvorkengaging surfaces adapted for operating on ranyv particular portion of a sole edge or shoej part'.l

Having thus described my invention, what I claim as new and desire to secure byrLetters Patent of United States is: Y

l. In a'nishing machine having -a. moving burnishing tool, a support, means for heating the tool mounted on said support formovement toward and away from said tool', means mounted to swing on said support for retraeting the heating means from the tool, and yieldingnieans arranged alternatively to urge the heating means against the tool and to cause the retracting means to'hold the heating means in retracted position..

2. In a iinishing machine having a moving heating the tool mounted for slidingmovement toward and-away rtherefrom, means for yieldingly holding the heating means against the tool, and means for opi'erating said heating means having Ya limited movement in one'direetion, saidyielding'means' being arranged also to hold the said operating proximal position with respect to the support.

4. A heater comprising a shoe adapted for frictional engagement with a moving tool, a support for* said shoe, the latter being arranged to slide in the support, yielding means tending to cause said shoe to move in one direction with respect to the support, and means for moving said shoe in the opposite direction comprising a lever having limited movement and connections between the lever and shoe cooperating with. said `yielding means to hold the lever` at one extreme of its movement.

- 5. A heater comprising a support, a friction shoe carried said support and mounted for movement with respect thereto, means for operating said shoe comprising a lever and link, and a spring arranged alternatively to urge the shoe away from the support and to cause the lever and link to hold the shoe in its proximal position with respect to the support.

6. A heater comprising a support, a friction shoe carried by said support andl mounted for movement with respect thereto, means for operating said shoe comprising a lever having limited movement in one direction, and a spring acting upon said shoe and arranged to hold said lever in the extreme position of its limited movement.

7. In a nishing machine having a moving burnishing tool, vmeans for heating the tool adapted for frictional engagement therewith and mounted for movement toward and from the tool, yielding means arranged to urge the heating means toward the tool, and means for retracting the heating means from the tool comprising a lever having limited movement and a member connecting said lever and heating means utilizing said yielding means to hold the lever at one extreme of its movement.

8. In a iinishing machine having a moving burnishingY tool, means for heating the tool by frictional engagement with said tool, means for urging the heating means towardsaid tool, and mechanism comprising a lever and a link for V,retracting the heating means from the tool convstructed and arranged to cause said second-menburnishing tool,.heating and cleaning means 'arranged for movement toward and away from the tool7 means for moving the heating and cleaning means between its operative and inoperative positions, and means constructed and arranged .alternatively to urge said heating and cleaning the tool, resilient meansfor urging the heating- `and cleaning means towardsaid tool,` and conmeans against said tool and to cause said moving means to hold them apart. a i

burnishing tool, means for heating `and cleaning 4the tool by frictional engagement with the pe.-

riphery thereof, a support forholding said rneans in juxtaposition to the Work-engaging portion of nections for retracting said heating and cleaning means by overcoming the resistance of Ysaldresilient rneans.` o Y l2. In. a finishing machine having Va rotary burnishing tool, meansior heating the tool by frictional Contact with the Work-engaging face thereof, a support for holding said means ,in `jnxtanosition to the tool, resilient means connecting said support and heating means'V for urging the latter toward said tool, and` connectonsfbetween said heating means andr support for: retracting the heating means from the tool constrncted and arranged to cause said resilient to hold said heating means in retracted position. a f i l l3. In a iinishing machine having ,a burnishing tool, a friction shoe adapted for contact With the i tool ior heating it, yielding means for urging the i4. In a finishing machine having `a rotating burnishing toolfa frictionshoe adapted for enfgagement With the vWork-engaging face of the `lil. In a linisliing machine having' a rotary" tool, a support for said shoe, resilient means for urging said shoe against the tool thereby causing the tool to be heated and cleaned, a lever pivoted to said support, and alink connecting said lever and said shoe, said link and lever being constructed and arranged to retract the shoe from the tool and to canse the resilientmeans to hold the shoe in retracted position.

. l5. In a finishing machine having a rotating A burnishing tool, a friction shoe spring-pressed toward said tool, a pivotally mounted lever for i retracting the shoe from the tool against the spring pressure, a link connecting said lever and Y shoe, said lever being movable to carry the axis burnishing `tool,` airietion shoe adapted for movement toward and away` from the tool, a pivotaliy mounted lever, a connecting link pivoted at its ends to said lever and friction shoe respectively, said lever being movable about its pivotal axis from a position in which the line between the pivot points of the link isV at one side of said axis to a position in which said line is at'the other side of the pivotal axis, and a stop positioned to be engaged by said link when said line betweenl its pivot point has crossed said pivotal axis.

i JOHN L. JONES.

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